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September Weather in Savannah, United States

Last updated: June 24, 2025

In September, the average temperature in Savannah, United States is a pleasant 21°C (71°F). However, temperatures can vary significantly, with a minimum of 6°C (43°F) and soaring up to a maximum of 35°C (95°F). Expect 103 mm (4.0 in) of precipitation spread over 9 days, contributing to the region's average humidity of 72%.

September Temperature in Savannah

In September in Savannah, the average temperature is 21°C (71°F). Maximum temperatures can reach 35°C (95°F), while minimums can drop as low as 6°C (43°F). Overall, it's a great time to explore Savannah with warm days and cooler nights, perfect for outdoor adventures.

September Weather in Savannah: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Savannah, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Savannah, September typically has an average temperature of 21°C (71°F), with highs reaching up to 35°C (95°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec283044526577797671554235
Data source: Temperature data for Savannah generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Savannah

In Savannah in September, the precipitation amount is 103 mm (4.0 in) over the course of 9 days.

September Precipitation Trends in Savannah

The chart displays monthly precipitation patterns in Savannah, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Savannah, September typically receives around 103 mm (4.0 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec443493851661401221031031374537
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Savannah

In Savannah in September, humidity is 72%. With an average temperature of 21°C (71°F), this humidity feels like a warm embrace, creating a thick, sultry atmosphere that can be quite heavy for traveling.

September Average Humidity in Savannah

This chart illustrates the average monthly humidity levels in Savannah, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Savannah is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%78%75%77%82%83%81%78%72%72%84%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Savannah

In Savannah in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Savannah.

Maximum UV Index Levels in Savannah for September

The chart shows the monthly maximum UV Index (UVI) for Savannah in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Savannah typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111109643
Data source: Savannah September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Savannah Compares to Other Months

Weather in Savannah varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Savannah, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Savannah, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)44 mm (1.7 inches)80%moderate
February Weather-1°C (30°F)34 mm (1.3 inches)78%moderate
March Weather7°C (45°F)93 mm (3.7 inches)75%high
April Weather11°C (53°F)85 mm (3.4 inches)77%very high
May Weather18°C (65°F)166 mm (6.5 inches)82%very high
June Weather25°C (77°F)140 mm (5.5 inches)83%extreme
July Weather26°C (79°F)122 mm (4.8 inches)81%extreme
August Weather24°C (76°F)103 mm (4.0 inches)78%very high
September Weather21°C (71°F)103 mm (4.0 inches)72%very high
October Weather13°C (55°F)137 mm (5.4 inches)72%high
November Weather6°C (42°F)45 mm (1.8 inches)84%moderate
December Weather2°C (35°F)37 mm (1.5 inches)86%moderate

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